Nissan Rogue. Instruction — part 764
HAC-78
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B24B7 INTAKE DOOR MOTOR
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-103, "Removal and Installation"
.
NO
>> Repair harness or connector.
3.
CHECK INTAKE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between intake door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK INTAKE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR SHORT
Check continuity between intake door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK INTAKE DOOR MOTOR
Check intake door motor. Refer to
HAC-81, "Component Inspection"
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-103, "Removal and Installation"
.
NO
>> Replace intake door motor. Refer to
HAC-110, "INTAKE DOOR MOTOR : Removal and Installa-
.
Component Inspection (Motor)
INFOID:0000000011276623
1.
CHECK INTAKE DOOR MOTOR
1. Remove intake door motor. Refer to
HAC-110, "INTAKE DOOR MOTOR : Removal and Installation"
.
2. Check resistance between intake door motor terminals. Refer to applicable table for the normal value.
Intake door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M147
2
M55
41
Yes
Intake door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M147
1
M55
45
Yes
3
44
4
65
6
47
Intake door motor
—
Continuity
Connector
Terminal
M147
1
Ground
No
3
4
6
B24B7 INTAKE DOOR MOTOR
HAC-79
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace intake door motor. Refer to
HAC-110, "INTAKE DOOR MOTOR : Removal and Installa-
.
Terminal
Resistance (
Ω)
(Approx.)
2
1
90
3
4
6
HAC-80
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
B24B9 MODE DOOR MOTOR
B24B9 MODE DOOR MOTOR
DTC Logic
INFOID:0000000011276624
DTC DETECTION LOGIC
NOTE:
• If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
• If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010.
.
• If mode door motors DTC (B24B7 – B24B9) are detected, there is probably a disconnected connector or an
open circuit in mode door motor drive power supply harness.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Turn ignition switch ON.
2. Select “Self Diagnostic Result” of “HVAC”.
3. Check DTC.
Is DTC detected?
YES
>> Refer to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000011276625
Regarding Wiring Diagram information, refer to
1.
CHECK MODE DOOR MOTOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect mode door motor connector.
3. Turn ignition switch ON.
4. Check voltage between mode door motor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK MODE DOOR MOTOR POWER SUPPLY CIRCUIT FOR OPEN
1. Disconnect A/C auto amp. connector.
2. Check continuity between mode door motor harness connector and A/C auto amp. harness connector.
DTC
Items
(CONSULT screen terms)
DTC detection condition
Possible cause
B24B9
MODE DOOR MOTOR
Short or open circuit of mode door motor drive
signal.
• Mode door motor
• A/C auto amp.
• Harness or connectors
(The motor circuit is open or short-
ed.)
+
−
Voltage
(Approx.)
Mode door motor
Connector
Terminal
M143
2
Ground
Battery voltage
B24B9 MODE DOOR MOTOR
HAC-81
< DTC/CIRCUIT DIAGNOSIS >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-103, "Removal and Installation"
.
NO
>> Repair harness or connector.
3.
CHECK MODE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connector.
3. Check continuity between mode door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK MODE DOOR MOTOR DRIVE SIGNAL CIRCUIT FOR SHORT
Check continuity between mode door motor harness connector and A/C auto amp. harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair harness or connector.
5.
CHECK MODE DOOR MOTOR
Check mode door motor. Refer to
HAC-81, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-103, "Removal and Installation"
.
NO
>> Replace mode door motor. Refer to
HAC-110, "MODE DOOR MOTOR : Removal and Installa-
.
Component Inspection
INFOID:0000000011276626
1.
CHECK MODE DOOR MOTOR
1. Remove mode door motor. Refer to
HAC-110, "MODE DOOR MOTOR : Removal and Installation"
2. Check resistance between mode door motor terminals. Refer to applicable table for the normal value.
Mode door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M143
2
M55
41
Yes
Mode door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M143
1
M55
50
Yes
3
49
4
69
6
68
Mode door motor
—
Continuity
Connector
Terminal
M143
1
Ground
No
3
4
6
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